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Evgen [1.6K]
2 years ago
14

How do i find the value of a variable?

Mathematics
1 answer:
photoshop1234 [79]2 years ago
5 0

To find the value of a variable you must know the basics of pre-Algebra.


Example:


2x+9=39


To find he answer of this you must subtract 9 from both sides

Then you are left with…


2x=30

Since 2x=30 means 2 times x equals 30

You can divide 2 from both sides to find the answer

Which is…

x=15



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